Good idea/bad idea?

I have decided to give structure to my forthcoming holiday by booking myself a course of three mornings of group lessons in cross-country skiing skate technique at the extremely well-regarded school in Seefeld, where I shall be next week.

I am not entirely sure whether this is a brilliant idea that will teach me exciting new skills and be enormous fun, or whether I am completely out of my mind. I am definitely not ideally fit for it, but since at the moment my max distance skating is about 15m, I expect to fall over from technique fail long before my lungs/shoulders/legs give out. We shall see.